公开(公告)号：US5706773A

公开(公告)日：1998-01-13

申请号：US801614

申请日：1997-02-18

申请人： Lowell Eugene Dura ,  William Paul Vukovich ,  Robert L. Kauffman, Jr.

发明人： Lowell Eugene Dura ,  William Paul Vukovich ,  Robert L. Kauffman, Jr.

IPC分类号： F01L1/24

CPC分类号： F01L1/2405 ,  Y10T29/49304

摘要： A hydraulic lash adjuster for an internal combustion engine, and a method of its construction is disclosed. The lash adjuster has a cylindrical follower body in which a tubular plunger is slidingly disposed. The plunger cooperates with the follower body to define a high pressure chamber therebetween which is supplied with fluid through a valved port. A low pressure chamber which operates to supply fluid to the high pressure chamber through the valved opening, is defined by an axial passage through the plunger. Fluid flows into and out of the low pressure chamber through a port in the wall of the plunger. Intermediate of the port and the valved opening is a radially inwardly extending annular shelf which is integral formed with the axial passage of the plunger using a mechanical shaving step to plow a portion of the plunger material from the wall of the axially extending passage. The annular shelf operates as a baffle to prevent loss of fluid from the low pressure chamber when the hydraulic lash adjuster is installed at an angle from vertical.

摘要翻译： 公开了一种用于内燃机的液压间隙调节器及其结构的方法。 间隙调节器具有圆柱形从动体，其中管状柱塞滑动地设置。 柱塞与从动体配合以在其间限定高压腔室，其通过阀门端口供应流体。 用于通过阀门开口向高压室供应流体的低压室由穿过柱塞的轴向通道限定。 流体通过柱塞壁中的端口流入和流出低压室。 端口和阀门开口的中间件是径向向内延伸的环形搁架，其与柱塞的轴向通道一体地形成，其使用机械刮削步骤从柱塞材料的轴向延伸通道的壁上犁下一部分。 当液压间隙调节器与垂直方向成一定角度安装时，环形搁板用作挡板，以防止来自低压室的流体损失。

公开(公告)号：US5642694A

公开(公告)日：1997-07-01

申请号：US658901

申请日：1996-05-24

申请人： Lowell Eugene Dura ,  William Paul Vukovich ,  Robert L. Kauffman, Jr.

发明人： Lowell Eugene Dura ,  William Paul Vukovich ,  Robert L. Kauffman, Jr.

IPC分类号： F01L1/24

CPC分类号： F01L1/2405 ,  Y10T29/49304

摘要： A hydraulic lash adjuster for an internal combustion engine, and a method of its construction is disclosed. The lash adjuster has a cylindrical follower body in which a tubular plunger is slidingly disposed. The plunger cooperates with the follower body to define a high pressure chamber therebetween which is supplied with fluid through a valved port. A low pressure chamber which operates to supply fluid to the high pressure chamber through the valved opening, is defined by an axial passage through the plunger. Fluid flows into and out of the low pressure chamber through a port in the wall of the plunger. Intermediate of the port and the valved opening is a radially inwardly extending annular shelf which is integral formed with the axial passage of the plunger using a mechanical shaving step to plow a portion of the plunger material from the wall of the axially extending passage. The annular shelf operates as a baffle to prevent loss of fluid from the low pressure chamber when the hydraulic lash adjuster is installed at an angle from vertical.

摘要翻译： 公开了一种用于内燃机的液压间隙调节器及其结构的方法。 间隙调节器具有圆柱形从动体，其中管状柱塞滑动地设置。 柱塞与从动体配合以在其间限定高压腔室，其通过阀门端口供应流体。 用于通过阀门开口向高压室供应流体的低压室由穿过柱塞的轴向通道限定。 流体通过柱塞壁中的端口流入和流出低压室。 端口和阀门开口的中间件是径向向内延伸的环形搁架，其与柱塞的轴向通道一体地形成，其使用机械刮削步骤从柱塞材料的轴向延伸通道的壁上犁下一部分。 当液压间隙调节器与垂直方向成一定角度安装时，环形搁架用作挡板，以防止来自低压室的流体损失。